Hyundai Santro Technical Issues

. This is a discussion on Hyundai Santro Technical Issues within The Technical Zone. Part of The Automotive Answers category; Hello everyone . Thanks for adding me in on this forum .
I have a 2000 Model Hyundai Santro EURO-II ...

Hello everyone . Thanks for adding me in on this forum .
I have a 2000 Model Hyundai Santro EURO-II which has 1.9 Lac Km on its odo . 3 Weeks ago , I had changed my A/C Compressor as it was quiet old and was not working properly . I got a Genuine Compressor fitted after which the A/C was working good . Not like a new Car but satisfactory and at night it was working very very good . Also , The condenser , Radiator , Cooling Coil and Expansion Valve were thoroughly cleaned and checked . They were also working properly . Now yesterday the Alternator of my Car failed and I replaced that with second hand Alternator but of Santro Xing . After this job the A/C cooling has decreased . Also after the Alternator installation I had to get the tuning of my Car on Petrol/CNG redone . I just want to know from you guys that does Alternator has anything to do with A/C of my car . The lights are working better than before . Battery is charging properly . This Alternator makes a little more sound than the old one . The compressor and Alternator Belts are perfectly tightened . What can be the problem . I haven't consulted any mechanic other than the guy who installed the Alternator . He is saying that Alternator has nothing to do with the A/C . Also there is another matter . On the first start of the day and after some running , the Temperature needle comes to its position in about 1 KM and stays there . There is no overheating problem . Even in Bumper to Bumper Traffic , the needle stays at its position and does not even move . I have checked the Coolant level and for any leakages and everything is normal . Before this , the needle took around 2 Km to come to its position . Is this a normal phenomenon or something is wrong . Thanks

running , the Temperature needle comes to its position in about 1 KM and stays there . There is no overheating problem . Even in Bumper to Bumper Traffic , the needle stays at its position and does not even move . I have checked the Coolant level and for any leakages and everything is normal . Before this , the needle took around 2 Km to come to its position . Is this a normal phenomenon or something is wrong . Thanks

An engine scan could reveal if there are any fault codes stored in the ecu.

Again i am querying for my friend,
Guys,
As i mentioned the santro is having poor mileage figures with mixed driving (City and highways)-
Avg-10kmpl.
Clutch was changed just before 1000 km .
I will check Air filter anyway.
He told spark plugs were also changed during that service.

i had taken my santro (1999) model for servicing. The engine oil, brake oil, coolant and spark plugs were all changed (no doubt a hefty bill also). After servicing, i experienced jerks while reducing speed in all the gears. When i increase the speed there was no jerking, but when i take the foot off the pedal to reduce the speed, the jerking start forcing me either to increase speed or drive in half clutch. I check with the mechanic and he replaced the distributor cap (again with a hefty bill). Still the problem is not solved, though the mechanic says there is no problem. The smoothness which i had before giving servicing is totally lost. i feel vexed with the approach/non solving of the problem. any idea where i have missed or the mechanic has missed